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Daniel [21]
3 years ago
12

Select the true statement.

Biology
1 answer:
Schach [20]3 years ago
4 0
Viruses are infectious particles that are non-living. They lack two of the eight characteristics of living things.
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Chromosomes move to the middle of the spindle during what phase
egoroff_w [7]
During mitosis, chromosomes move to the middle of the spindle during metaphase. Mitosis is a type of cell division in which the parent cell divides into two daughter cells with each daughter cell receiving the same number of chromosomes as the parent cell. Mitosis has the following phases: prophase, metaphase, anaphase and telophase.
3 0
3 years ago
A scientist is using a light microscope to observe a sample of muscle tissue. By analyzing the cellular structure and organizati
Dimas [21]

Answer:

The correct answer is option D. "whether the muscle moved the skeleton, the heart, or another type of internal organ".

Explanation:

It is possible to determine whether a sample of muscle tissue moved the skeleton, the heart, or another type of internal organ by analyzing its cellular structure and organization. For instance cardiac muscle is striated and organized into sarcomeres, while smooth muscle that is located in organs such as intestines, uterus and stomach are not organized into sarcomeres.

4 0
3 years ago
The rock pocket mouse and human skin color are examples of evolution in that they both?
Crazy boy [7]
A have the MC1R gene and melanin deference
5 0
2 years ago
Which of the following is an incorrect statement?
LenKa [72]

Answer:

four billion years ago the earth had a layer of ozone gas

5 0
1 year ago
Match the animals with their characteristics.
anygoal [31]

Answer:

Earthworm - have a coelom and a closed circulatory system.

Scallops or clams - has a mantle and an open circulatory system.

Starfish - has an endoskeleton made of calcium-rich plates.

Spider - exhibits the phenomenon of molting.

Explanation:

Earthworm belongs to Phylum Annelida. They are metamerically segmented, triploblastic and bilaterally symmetrical. They have a closed circulatory system and a coelom (true body cavity).

Scallops or clams belong to Phylum Mollusca, the second largest animal phylum. They are coelomate, triploblastic, bilaterally symmetrical organisms having an open circulatory system. They have a calcareous shell covered body with a distinct head, muscular foot, visceral hump and a mantle (soft and spongy layer of skin) over the hump.

Starfish belongs to Phylum Echinodermata, which consists of exclusively free-living marine organisms. They have an endoskeleton made up of calcium carbonate structures.  They are coelomate, triploblastic and have a water vascular system that is used for respiration, locomotion, food capture and transport.

Spiders belong to Phylum Arthropoda. They have chitinous covered segmented bodies, jointed legs and exoskeletons (hard external shells).  Arthropods periodically shed their exoskeletons or shells in order to grow, this process is called molting. They are coelomate, triploblastic, bilaterally symmetrical organisms having an open circulatory system.

5 0
2 years ago
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